Railway truck



Oct. 26, 19 3. J. c. TRAVILLA, JR, ET AL 2,33

RAILWAY TRUCK Filed June 26 1941 2 Sheets-Sheet l INVENTORS JAMES C.TRAVILLAIJR. OTTO JABELMANN M A TORNEY W Oct. 26, 1943.

J. C. TRAVILLA, JR, ET AL RAILWAY TRUCK Filed June 26, 1941 2Sheets-Sheet 2 P II l l l l HI I IHHHI I I I PHHI H HU l INVENTORS JAMESC. TRAVILLA,JR. OTTO JABE LMANN Patented Oct. 26, 1943 UNITED STATESPATENT OFFICE RAILWAY TRUCK Application June 26, 1941, Serial No.399,838

Claims. (Cl. 105-224) The invention relates to railway rolling stock andmore particularly to trucks and consists in all of the novel featuresdescribed and claimed herein.

The invention is particularly adapted for use intrucks having a truckframe and relatively movable journal boxes and trucks bolster, and oneof the objects of the invention is to improve the assembly of suchrelatively movable parts and cushion the forces transmitted between themso that they do not normally have sliding engagement with each other,either directly or through chafing plates, thereby avoiding binding,wear, and replacement of parts, and noise and shocks due to impacts andsliding contact between such relatively movable members, except forlateral sliding engagement between journal box flanges and the adjacentfaces of a cushioning or lateral motion device mounted on the pedestaljaws.

This general objective may be obtained by connecting the relativelymovable truck parts by anchor or draft rods of the general type illustrated and described in the copending applications of Carl E. Tack,Serial No. 230,175, filed September 16, 1938, and Serial No. 336,172,filed May 20, 1940, and another object of the invention is to facilitatethe application and removal of the anchor rod to assembled truck partswhere the connections between the rod and the truck parts areinconvenient of access.

Anchor rods of the type referred to include yielding members engagingthe truck parts to which the rod is attached and adjustable means forcontrolling the resistance offered by such members and for properlyspacing in the truck, the part to which the rod is connected, and theadjustment of such means may be effected by the disconnection andconnection of the rod to the truck parts and may change the effectivelength of the rod. It is a further object of the present invention toavoid unintentional change in the effective length of the rod.

These objects are attained by providing a separable joint between rigidsections of the anchor rods, whereby the sections may remain attached tothe truck parts to which they are respectively connected when the partsthemselves are disassembled.

Another object of the invention is to safeguard the truck parts such asthe truck and journal box against accidental disassembly, as in case ofderailment, for example.

Figure 1 is a top view of one comer and the adjacent middle part of arailway truck, a portion of the truck frame being sectioned horizontallyto more clearly illustrate the construction.

Figure 2 is aside elevation and longitudinal section of the structureshown in Figure 1 and is taken approximately on the line 22 of Figure 1although apart of the truck frame is broken on the line 44 of Figure 1and drawn to an I enlarged scale.

Figure 5 is a transverse vertical detailed section taken on the line 5-5of Figure 4.

Figure 6 is a vertical transverse section taken on the line 6-6 ofFigure 1.

The truck includes the usual wheels I and axles 2, the latter mountingjournal boxes 3 having wings 4 extending laterally from the axles andcarrying coil springs 5. The truck frame is supported on springs 5 andincludes box-shaped wheel pieces 6 having deepened portions at eitherside of each journal box.

Spaced transverse transoms I and 8 extend between wheel pieces 6 atopposite sides of the truck. Preferably wheel pieces 6 and transoms Iand 8 are of box-shaped section, the ends of the transoms merging withthe inner walls 6a of the wheel pieces, and the outer walls 617 of thewheel pieces are provided with substantial openings 9 opposite to theends of transoms l and 8 to lighten the structure and facilitate castingof the truck frame and to avoid undue strains in the latter due to theshrinkage of large masses of material in the cooling of the casting.

The bolster [9, having a center plate 20, is suspended from the frame byswinging links and is held against undesirable movement relative to theframe by anchor devices 23, 24 and 25 previously detailed in thisapplication but cancelled in view of the office requirement fordivision, and now disclosed in applicants copending application, SerialNo. 429,194, filed February 2, 1942.

Each journal box 3 is held against undesirabl movement longitudinally ofthe truck frame and against excessive rotational movement about its axleby rods 2| and 22, each having its ends connected respectively tobrackets on the box and frame. The box brackets 26 and 21 extendupwardly and downwardly respectively from the central portion of the boxand include lugs 28 and 29 respectively extending transversely of thetruck. Brackets 30 and 3| project from the truck frame wheel piece andinclude lugs 32 and 33 respectively extending transversely of the truck.

Rod 2| is detailed in Figures 4 and and it will be understood that rods22 and correspond in detail to this construction.

The rod comprises two tubular sections 2| a and 2lb with their adjacentends having individual flanges 34 and 35 respectively normally securedtogether by bolts 36 to provide a rigid joint between the two sections.The flanges are Welded to the sections and flange 34 may project beyondthe end of section 2la to receive the adjacent end of section 2lb andthereby align the two sections axially.

Flanges 31 and 33 and yielding pads 39 of rubber or similar material aresecured to the outer ends of the sections, the rubber pads 39 grippingthe lugs 28 and 32 respectively between them. A rubber bushing 39a isprovided between pads 39 and the lugs 28 and 32. Each flange 31 iswelded to the rod, and'nuts are threaded onto the ends of the rod toprovide for the adjustment of flange 38 along the rod to vary thepressure on rubber pads 39 which determines the extent to which the rodunit may yield and also determines the resistance which the rod mayoffer to relative lateral movement of the truck parts to which it isattached, and pins 4| serve to lock nuts 40 in adjusted position.Washers 42 between each pad 39 and the adjacent flange provide means foradjusting the effective length of the rod unit.

The outer wall 3b of the wheel piece has projecting lugs 43 arranged inpairs to form seats for detachable stops 44 projecting longitudinally ofthe truck beneath cooperating lugs 45 on the adjacent journal box. Stops44 and lugs 45 have upwardly and downwardly facing opposing surfaceswhich engage if the pedestal is lifted or the wheels, axles and boxesare dropped and prevents the separation of these members and undueangular movement of rods 2| and 22 about their connections to the boxand frame. The stops are located on the outer face of the frame whichfacilitates their application and inspection and avoids interferencewith journal box springs 5.

Between the boxes and frame there are provided yielding lateral motiondevices including U-shaped plates 46 and 41 having a rubber pad 48between them and bonded to the opposing faces extending transversely ofthe truck.- One of the U-shaped plates is attached to the corre--sponding truck part and the other U-shaped plate opposes laterallyfacing surfaces on the corresponding journal box part. These lateralmotion devices are constructed in accordance.

with.,those covered by patent to one of the pres- ,ent applicants, JamesC. Travilla, Jr., No. 2,229,-

429, issued January 21, 1941.

With the use of a journal box of the wing type with springs on each sideof the box to support the truck frame, it is advisable to provide only a.small amount of longitudinal play-between the box and the pedestal sothat if there is a Variation in the spring pressures on each side of thebox, the likelihood of a wedging action of the box in the pedestalduring vertical movement of the box and pedestal is reduced as much aspossible.

With the above described construction, the anchor rods transmitlongitudinal forces between the journal box and truck frame and byhaving one rod on top and one rod on the bottom there would be verylittle, if any, rotation of the journal box on the axle whenthe boxmoves vertically in the pedestal and the journal box would not engagethe transverse face of the pedestal, and consequently there would be nowear due to sliding action or binding action due to rotation of the boxon the journal. The pedestals hold the journal boxes in transverserelation with the truck by means of the fit between the pedestal linerand the journal box flanges.

In truck maintenance the journal boxes may be removed frequently foradjustments or repairs and usually such adjustments or repairs should bemade quicklyso that there will be no unnecessary delay in putting thetruck back into service.

By disconnecting the coupling on the anchor rods, the boxes can beremoved from the pedestal without disturbing the connections between theanchor rod and the box and between the anchor rod and the frame, andwhen the boxes are reapplied and both parts of each rod again boltedtogether, there would be no change in the adjustment of the rod and thejournal boxes would again have the proper fit in the pedestal.

Another advantage of the two part anchor rod is that a new box can beapplied without any unnecessary delay caused by making adjustments inthe anchor rods. The new box is provided with the rod portions alreadyapplied and adjusted by gauge so that it is interchangeable with the oldjournal box without any difference in the clearance between the pedestaland the truck frame.

The details of construction may be varied substantially withoutdeparting from the spirit of the invention, and the exclusive use ofsuch modifications as come within the scope of the claims iscontemplated.

What is claimed is:

1. In a railway truck, a frame including a pedestal jaw, an axle boxmovable vertically in said jaw, an anchor rod extending longitudinallyof the truck, there being connections between the ends of the rod andthe box and frame respectively, each of said connections ineludingyielding elements and means for placing said elements under initialdistortion and thereby positioning said box relative to said leg, saidmeans being adjustable to vary said positioning, said rod including twoparts coupled together between said connections whereby the frame andbox may be disassembled by uncoupling the parts without affecting theassembly of said connections and the frame and box.

2. In a railway truck, a frame including a pedestal jaw, an axle boxmovable vertically therein, anchor rods extending longitudinally of thetruck and located at the top and bottom of said box respectively, aconnection between each end of each rod and the frame and box respec--tively to hold said box and frame in desired relation longitudinally ofthe truck and to hold said box against rotation in said pedestal, eachof said connections including means for adjusting the effective lengthof the corresponding rod, each rod including aseparable joint betweenthe adjustable connection at one end of the rod and the adjustableconnection at the other end of the rod whereby the box and one portionof each rod may be removed from the frame and the other portions of therods and reapplied to the frame without affecting the adjustment betweenthe box and frame.

3. In a railway truck, a wheeled axle, a journal box thereon having awing extending laterally of the axle, a truck frame supported from saidwing and having a downwardly opening pedestal jaw slidably receivingsaid box between its legs, said box extending downwardly below the lowerends of said legs, an anchor rod extending longitudinally of the truckbeneath one of said pedestal legs and connecting said frame and thebottom of said box, said frame and box having vertically opposingelements above the level of said rod to prevent the dropping of the boxand axle from the frame.

4. In a railway truck, a frame including a pedestal leg, an axle boxmovable vertically alongside of said leg, an anchor rod extendinglongitudinally of the truck and having separable portions with adjacentends abutting each other, and means detachably securing said abuttingends to each other, the outer ends of said rod being provided withconnections to said frame and box respectively, whereby'said frame andbox are positioned relative to each other longitudinally of the truck,said connections including yielding elements for cushioning the thrustbetween said frame and box and said connections also including devicesfor adjusting the distortion of said elements and the effective lengthof said rod, said means providing for the maintenance of a desiredadjustment of said connections and for a desired relative positioning ofsaid box and leg irrespective of disassembly and reassembly of said boxand frame.

5. A truck as described in claim 4 which includes a pad. of rubber-likematerial between the box and pedestal leg, there being elements attachedto said pad and opposing the pedestal leg and box transversely of thetruck and yieldingly resisting their lateral motion, the anchor rodholding the pedestal leg and box in spaced relation and relieving saidpad of compression forces exerted. longitudinally of the truck.

JAMES C. TRAVIILA, JR. OTTO JABELMANN.

